Has anyone actually been audited for this? My boyfriend and I have both been claiming HOH for like 3 years (we each claim one kid) and haven't had any issues. Is this one of those things the IRS doesn't really check?

I'm dealing with a similar situation and want to share what I learned from my tax preparer. The key thing to understand is that the IRS looks at the entire household as one unit, regardless of how you split expenses or which parent claims which child. Even though you're unmarried, if you're living together and sharing household expenses, only one person can meet the "pays more than half the cost of keeping up the home" requirement. The IRS defines this very specifically - it includes rent/mortgage, property taxes, insurance, utilities, repairs, and food consumed at home. What my preparer suggested was to actually restructure our finances so one person clearly pays more than 50% of these costs. For example, one person pays the full rent/mortgage while the other handles other expenses like groceries, childcare, or car payments. This way there's a clear paper trail showing who maintains the household. The person who doesn't qualify for HOH can still claim a child as a dependent and get the Child Tax Credit, they just have to file as Single. In some cases, this arrangement can actually work out better tax-wise than both trying to claim HOH incorrectly. Definitely worth getting professional help to figure out the optimal arrangement for your specific situation before you potentially face an audit!

Question for anyone who knows - I'm in a slightly different situation where I'm selling privately held stock. Does anyone know if TurboTax or similar programs handle calculating these estimated payments correctly? I'm trying to avoid paying a CPA for something that seems like it should be straightforward.

Just want to add another perspective here - I went through something very similar when my company got acquired in 2023. The acquisition created a substantial capital gain that pushed my AGI way over $150K, so I needed to hit that 110% safe harbor threshold. What I found helpful was calculating the exact amount early in the year and then spreading the additional withholding across all remaining paychecks rather than trying to cram it all into the last few months. This made the impact on my take-home pay much more manageable. Also worth noting - if your employer's payroll system can't handle the level of additional withholding you need (some have limits), you might need to make at least one estimated payment anyway. I ran into this issue where my HR department said they couldn't withhold more than a certain percentage of my gross pay, so I had to make a Q4 estimated payment to cover the difference. The good news is that as long as your total payments (withholding + estimates) meet the safe harbor amount, you're protected from penalties regardless of how you split it up.

One thing nobody has mentioned yet is the impact on wash sale rules. If you make the 475(f) election, wash sale rules no longer apply to you! This was a game-changer for me as an active trader who frequently re-enters positions. With regular capital treatment, if you sell at a loss and buy substantially identical securities within 30 days before or after, the loss gets disallowed and added to the basis of the new position. This creates a tax nightmare for frequent traders. With MTM, this headache completely disappears.

This is such a helpful thread! As someone who's been considering the 475(f) election, I really appreciate all the detailed explanations and real-world examples. One question I haven't seen addressed: What happens if you're a part-time trader with significant W-2 income? I trade actively (about 80-100 trades per month) but it's not my primary source of income. Would the MTM election still make sense, or does it work better for full-time traders? I'm particularly interested in how the ordinary loss treatment would work against my regular salary income. If I had a bad trading year with net losses, could I use those to offset my W-2 income dollar-for-dollar instead of being limited to the $3,000 capital loss deduction? That could be a huge advantage even for part-time traders.

Has anyone used the IRS Withholding Estimator recently? I'm finding it super unintuitive and it keeps giving me weird results.

Clay, I went through this exact situation last year when I started a new job in June. Here's what worked for me: Since your new job pays $15k more annually, you'll definitely want to be conservative with withholding to avoid owing. I'd recommend starting with the checkbox in Step 2(c) for now, but also add about $50-75 per paycheck in the additional withholding box (line 4c) as a buffer. The key thing to remember is that your tax brackets are based on your total annual income, but your withholding at each job assumes that's your only income for the year. So even with the 2(c) checkbox, you might still underwithhold. After you get your first paycheck, definitely use one of the tools mentioned here or the IRS calculator to fine-tune it. I had to adjust mine twice before getting it right, but it's totally normal. Better to overwithhold slightly and get a refund than scramble for tax money next April! One more tip: keep good records of what you earn at each job and what gets withheld. It'll make tax filing much easier next year.

Your tax preparer definitely made a mistake here. The AOTC is limited to 4 tax years per student, so using it for those small community college expenses was wasteful. Honestly, I'd be asking for them to cover any additional tax you end up owing after amending, plus their fee for those years. A competent tax professional should know to preserve AOTC for when it provides the maximum benefit.

Just wanted to add that the deadline for amending 2022 taxes would be April 15, 2026 (three years from the original due date) and for 2023 taxes it would be April 15, 2027. So you have plenty of time, but I wouldnt wait too long since you'll want those AOTC years available when you need them.